m-marquee is an implementation of the now obsolete <marquee></marquee> tag. Simply add the js script to your HTML page and go crazy.
m-marquee is a pure CSS implementation of the tag with minor JS for timing calculations.
<!DOCTYPE html>
<html>
<head>
<title>Needless Throwback</title>
</head>
<body>
<m-marquee>Your marquee text goes here!</m-marquee>
<script type="text/javascript" src="m-marquee.js"></script>
</body>
</html>